Centrifugal liquid-separator.



Patented A r. 12, 1910. s sums-sum 1.

INVEN TOR G. D. HELLSTROM.

GENTRIFUGAL LIQUID SEPARATOR. APPLICATION FILED 1130. 22, 1906. RENEWED r311. 19, 1910.

1 7, 1/ /7 1 a, 1 iIi'iE-vi WITNESSES 0. D. HELLSTRUM. GENTBIFUGAL LIQUID SEBARATOR. APPLIOATION FILED DBO. 22, 1906. RENEWED FEB. 19. 1910. 954,958, Patented Apr. 12, 191 0.

3 SHEETS-SHEET 2.

WI TNESSES 0. D. HELLSTRGM. GEN' IBIFUGAL LIQUID SEPARATOR.

APPLICATION FILED DEC. 22, 1906. RENEWED FEB. 19. 1910.

Patented Apr. 12, 1910.

EIIWENTUR s SHEETS-SHEET s.

ATTORNEY WITNESSES r2 CW GRAPNERS. WA FNINGYON n c UNITED STATES ATEN-i. OFFICE.

CARL DIDRIK HELLSTR Q M, OF BELGVIKEN, ESKILSTUNA, SWEDEN.

OEN'IRIFUGAL LIQUID-SEPARATOR.

Ap1ilication filed December 22, 1906, Serial No. 349,152,

Specification of Letters Patent. Patented App 12, 1910,

Serial No. 544,904.

Renewed February 19, 1910.

for the passage of the liquid during the op-' eration of the separator, and the object of the invention is to provide a liner of this general character of a simple and comparatively inexpensive nature, having a novel and improved arrangement of means for maintaining the-liner plates in proper spaced relation and for preventing displacement or deformation thereof during use.

The invention consists in certain novel features of the construction, and combina;

tions and arrangements of the several parts of the improved liner,whereby certain important advantages are attained, and the device'is rendered-simpler, less expensive, and otherwise better adapted and more convenient for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claims.

In order that my invention may be the better understood, I will now proceed to describe-the same with relation to the accompanying drawings, wherein a Figure 1 is a vertical section taken axially through a centrifugal separator drum, and showing a liner embodying my invention applied thereto for use, the plane of the sect1on being indicated by the line a-b in Fig. 2; Fig. 2 is a plan view of one of the liner plates detached from the separator drum: Fig. 3 is an enlarged fragmentary sectional. detail view taken through two of the liner plates in the plane indicated by the line c-rl in Fig. 2, and illustrating certain features of construction which will be hereinafter referred to; Fig. at is another fragmentary sectional detail. view, somewhat similar to Fig. 3, but'taken in the plane indicated by the line e- -f in Fig. 1, and

to be hereinafter referred to; Fig. 5 is a fragmentary sectional View taken through one edge of one of the liner plates, detached, and showing. certain features of construciIlustrating other features of construction tion to be hereinafter referred to; Fig. 6

is a fragmentary sectional view taken through the slo ing art of one of the liner plates, detachec, an showing certain other features of construction; Fig. 7 is a frag mentary sectional detail View taken in the plane indicated by the line a-b in Fig. 2,"

and illustrating a modified formation of certain parts of the liner comprised in the present invention; Fig. 8 isa fragmentary plan View illustrating certain features of construction of the device shown in Fig. 9; Fig. 9 is a sectional detail view similar to Fig. 3, but illustrating a modified formation of the parts therein shown; Fig. 10 i's'a plan view similar to Fig. 2, but illustrating a .modified formation of the liner plate, and- Fig. 11 is a fragmentary sectional view similar to Fig. 1, but illustrating another formation of the liner comprised in my present invention.

Referring first to Figs. 1 to 6, inclusive, 1 represents the base member of a centrifugal drum having an upright rotatory shaft 2, at the upper part of which is produced an enlargement or bearing portion 3, which is hollowed out as shown at 4 to produce a chamher at the axis of the drum to which the full milk is supplied. The drum is supplied with a removable cover 5, held in position by means of a nut 6 which has threaded engagement with the upper extremity of the bearing portion 8.

As herein shown the centrifugal drum is provided with bottom and top plates 7 and 8, between which the improved liner constructed according to my invention is securely clamped and held, said bottom and top plates being herein shown as formed from comparatively thick material, and having means for engagement with the liner plates to strengthen and retain the same in place, as will be hereinafter explained. It will be evident, however,- that these plates may be omitted without departure from my invention and where desired, the bottom and top of the drum may be provided witlrmeans for engagcmentwith the liner plates.

As shown in the drawings, the improved liner is formed from plurality of superposed funnel-shaped platcsi), 9, formed from thin metal and arranged. in the centrifugal drum and, sin-rounding the axial hearing portion .3, said plates '9, 9, being spaced apart to produce between them narrow spaces or clniunbers l0, 10, adapted to he traversed by the milk durin I the use of the improved W liner, and each or said. plates 9, 9, is provi'ded, with an u -e1ed surface of which plates are assembled,

pturned and outwardly inclincd hnnular flange or rim '11, extended around it and so shaped that its lower out wardly and upwardly inclined surface af- .fords extended around such plate adjacent to its outer pcrin'ietral edge or margin. A's herein shown, the flanges or rims 11, of the several tunnel-shaped plates 5), 9, have their outer upper parts directed outwardly as seen at 1st to produceinilrrow beads which are adapted, when the liner isassembledwithin the drain, to contact upon the wall. thereof, or upon ribs or projectionsproduced thereon I At certain points around its outer or perinietralipart or at three equidistant points,

herein shown, each of the funnel-s'hapcd plates 9, 9 is :{providod with integral depressed portions, which afford chambers 0r recesses 16, 16 upon the top surfaces of said funnel. shaped hers 15, l5pendent beneath the under or lower surfaces of said. plates 9, the said pendent supporting memhrslfi, duced being arrangedto project as shown in Figs. 3 and 5, at such distances below the under or lower surfaces of said plates 9" as to be adapted, by plates or parts, to support said plates in spaced relation, as clearly shown in Figs. 1 and i'l. In each of the chambers or recesses 16, 1G thus produced at the top surfaces of thefunnel shaped plates 9, 9 is-secure'd, by soldering or otherwise, a filling piece or member 18 which, as 1, 2, and 5, has its top surface made flush with the is secured, and serves to fill the chamber or recess 16 wherein it is held from top to hottom scans to materially increase the strength and stifi'ness of the pendent;- projection or spacing member 15 produccdat the lower or under surface of said platchy the bending of the metal downward to form such chainher or recess 16.

. A Each filling-piece or member 18 has, ad-

. jacent to the the, plate 9 to which it is secured, an integral upturned and outwardly directed project-ion or part 1?), the under'or'outer surface of which is arranged to fit flush upon. the in clined ortapered surface of said adjacent flange or head 11 and 1 he inner or upper bevis arranged, when the as shown in Fig. 1,150 abutment 20 which is contact upon the outer afford a shoulder or :adapted for accurate an annular shoulder or abutment 12,

essence J'OI lower beveled surface '12 or the flared or tapered. marginal flange or head 11 of the siuuci plcoot plate 9.

When the imprm'ed linerconstructed according to my hivi-u'itiou is arranged in the separator druni, as shown in Fig. 1, the lOWGJZ'IIlOSt tunnel shaped plate is rested upon the thickcl'ir-d bottoi'n plate 7 at the lmver part ot'lhc drum, 'l'iei'l'ig' supported at a suitable hlevatioi'i above said plate 7 by the engagcinci it of its sup 'iorting or spacing nicmlgicrs 15, lo therewith, and having the lower or outer surfaces of its upturned flange or head 11 engaged upon shoulders all'orded. by the tapered or beveled inner surfaces of upturnedprojections 1!} carried. by the plate 7 and heroin shown as made. siu'lilar to the 'p :'ojecti.ons 19 oi the filling members or pieces .18 of the respectire plates 9. ired, as stated above the plate A .ahove the bottom of the separates drum. H

i-rhove the to uno. ,plate of the liner, when within the separator 'uiu, as shown in Fig. 1, is fitted the thickened top plate 8. which is wrwidcrl with in inclined. surf c e 8 which is adapted to'conform and. lit acculates and Qro'ectin injenr' l 9 l i 15 thus procontact upon the suhjacent clearly shown in Figs.

top surface ofthe plate to which it upturned flange or head 11 of rately against the inner or upper he'yeled surf; cc of the marginal upturned and fiared flange or rim ll of said topmost plate, the filling nzcnit s 18 of said topmost plate 9 'beii'ighcroin showitas unprovided witlrthe upward]; and outwardly directed parts or projections 15 such as ai'eprovlded upon the remainder otthe plates-9 comprised in the liner[ i v In assembling the plates'fi 'within. 'the separator drum, the spacing members 515, 15 are aimed with each )tl 1er parallel with. the axis of the drum, and since eachpiicli mmi'ihcr 1:: has its lower surface engaged upon a filling ember-"1s of the subiacent plate. it will be. seen that great .n'gth is afl'orde d, and the. asscnihledstructure adapted to withstand, without liability of" damage or derangement of its plates, such pressure as may be imposed the" oh inn securing the coverflof the drum l'nfpositipn, and furthcrm o'r'," since" (h tch edge phr; tion of each "plate c ire' cngagenicnt upon the shoulders or abu 11520 attended by the-inner oi upper beveled surfaces of the 'upturn'c project'ionsf l o'f thefilling; members, lifl'W lll seen t-lgiat the seve plates are tliei'ehypi er "itcd; from slipping" or springing lhtei 'll y" 1;: the operation of the drum; so i t ndp or 'detorniatpn of the thfh jlgliites is .efl'ectiigely i nietiil .1 i, I flfpoi tions of "the. plates all .'ded the" filling 1ne1nhers 19,- 19 "secured-within this chambers or recesses 16,""1'6 "seyeral' plates 9 of the .iin-

use

21 upon the drawings, and in assembling the plates within the separator drum, such apertures 21, 21 in the several superpo ed liner plates are alined with each other in directions parallel with the drum axis, to produce passages extended. upwardly adjacent to the periphery of the liner as clearly shown at the left-hand side in Fig. 1, and which are adapted to receive the full milk supplied by way of a passage or pas sages 1 produced in the lower part of the drum and having communication with said passages by way of apertures 7 suitably formed in the thickened lower part 7.

At the forward side of each filling piece or member 19,.with reference to the direction of rotation of the drum, as indicated by the arrow 00, in Fig. 2, such filling piece 19 is cut away or notched outas clearly shown in Figs. 2 and 8, so that the full milk rising through the apertures21, 21

at each vertical passage of the liner is permitted to flow freely from such passage into the forward end of each recess or chamber 16, and is permitted to escape from such chamber or recess into the space or compartment 10 between plates. 9, 9 with which such chamber or recess 16 is in communication, and as shown in Figs. 2 and 3,1:he said forward ends of the chambers or recesses '16, 16 have upwardly inclined surfaces 17 which facilitate the flow of the full milk from said chambers or recesses to the spaces or compartments 10 between the several plates 9, 9 of the liner.

In addition to the engaging means above described which serve to'maintain the-liner plates in spaced relation and prevent the plates from being sprung or stretched out of shape during use of the separator, I have shown the liner plates provided with auxiliary engaging devices which serve to prevent turning of the plates relatively to each other durin use, whereby the vertical passageways afiorded at the openings 21,. 21,

might be occluded, and as shown in Figs. 1, 2, 4 and 6, said auxiliary engaging means comprises filling or spacingblocks or members 24, 24, of which three are provided at each plate 9, located at equi-distant points midway between the first mentioned engaging means, comprising blocks or members 18, 1s.

The auxiliary filling or spacing blocks or members 24, 24, are securely held, by soldering or otherwise, in chambers or recesses afiorded in the plates 9, 9 at points some distance above and within themarginal rims c1 flanges 11, 11 of said plates, the structure being such that the metal of each plate is depressed at each such chamber or recess, and thereby a projection is produced at the under-side of each plate 9 beneath such chamber or recess, as clearly shown at 22 on the drawings.

The depressions or chambers wherein the auxiliary filling or spacing blocks or members 24, 24 are held, are made V-shaped in form projections upon said upper conical surfaces of the liner plates, which projec-' tions are notched 'out to produce opposite inclined or beveled surfaces 25, 25 at angles to each other and adapted to conform to and fit flush upon the beveled or inclined surfaces 23, 23 of the respective projections 22,

22 upon the under surfaces of the liner plates. By this arrangement the projections 22 at the underside of each liner plat are adapted to contact upon and interlock with the corresponding projections at the upper side of the subjacent plate, so as to maintain the plates in spaced relation and to strengthen the structure to enable it the better to. withstand crushing strains imposed in the direction of its axis, and since the interlocking inclined or beveled surfaces 23 and 25 of the several projections are extended in planes at angles to the direction of the rotatory movement applied to the liner during use, it will be seen that the several plates are prevented from shifting one upon the other, whereby the apertures 21, 21 are 'maintained in communication and are prevented from becoming closed or obstructed during the use of the device. 7

In connection with the spacing means above described I have shown the improved liner also provided with auxiliary spacing means, which as shown in Figs. 1 and 2 are in the form of spiral projections 30 extended along the undersides of the respective liner plates from the chambers or depressions 16, 16 adjacent to the peripheral parts of the plates upwardly and inwardly toward the central upper portions of the liner plates,

each such spiral projection being produced. as herein shown, by an integral portion of the corresponding liner plate which is bent, downwardly to produce such projection 30 at the under surface of the plate, a cor-' responding spiral channel 33 being produced in the upper surface of the plate, as clearly shown in Figs. 1 and 2. By this arrangement, the spiral projections 30 at the underside of each liner plate are adapted for contact upon the upper conical surface of the subjacent plate to hold the several plates of the liner in spaced relation and toafford CM i spiral filling increased strength. and stiffness such as is desirable for-preventing deformation of the plates under the strains to which they are subjected during actual use. In some cases I have also found it, desirable to provide strips or members 31 extended in the spiral channels produced upon the upper surfaces of the liner plates by the bending of the metal to form the spiral projections 80 at their undersides as above described. Such a construction shown in the detail sectional View, Fig. 7, wherein said filling strips or members are arranged to project above the conical upper surfaces of the plates in position for accurate contact upon the spiral pro ections 30 of the superacent liner plates.

.ln Fig. 9 l have shown a modified formation of tbeliner embodying my invention,

Wliereurthe pendent projection 15 upon the lower side of eaehlliner plate is engaged Within the upper enlarged portion of the oorresponchng chamber or depression 16 in a subjacentliner plate in such a manner as to lock the plates against independent turning movement and thereby prevent them from shifting sufficiently to occlude or obstruct the apertures 16 during operation of the separator. 1 j i From the above description of my improvements, it will be obvious that the liner constructed according to my invention is of expensive nature,

an extremely simple and comparatively 1n" and is particularly well adapted for use by reason of: the strength a i and rigidity of its construction, and it Wlll .1l1i1tlOl1,llI1d arrangement of the several arts herein set forth in carrying out my invention in .ractice. For example, it is evident that t 1e annular depressed portions of the liner plates may extend toagreater, or less extentaround the circumference of each plateand may even be madein annular formation as siown at 15 in Fig; 10, so as to afford an annular channel l6 extended arounddhe peripheral portion of the plate, and the filling. pieces or members 18 may be securedinsaid annular channel 16* so as to extend across the same adjacent to each u aperture 017,.if desired, the chambers or i surfaces of tl'ieplates, as shown at 16 in plates jvhicln are upbent to depressions or chambers will e caused H) the plates shown athlo as depressions,maybe produced in the lows in which case integral partsiof the n'oduce said Fig. .1;

project above the upperconical surfaces of ceases sions or chambers 16 of adjacent plates so as to strengthen the structure and prevent the liner plates from turning relatively: to

' each other dur ng use.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A liner for centrifugal separators comprising a plurality of funneldike plates adapted to be fitted one within the other in spaced relation, each such plate having one of its conical surfaces provided with a pro jection and its opposite conical surface provided with a shoulder adapted for engageinent upon the projection of an adjacent plate at the side of such projectionwhich is adjacent to the perimeter of the liner.

A. liner for centrifugal separators comprising a plurality: of funnel-like, plates adapted to be fitted one Within the other in spaced relation, each such plate having an integral depressed portion forming on one of itscon-ical surfaces a projection and upon" its opposite conical surface a chamber, and a .fillingwlnember fixedly held within said chamber and adapted for engagement with the projection-of an adjacent plate. i

3. A liner for centrifugal separators com prising a plurality of funnel-like plates adapted to be fitted one Within the other in spaced, relation, each such plate having an;

integral depressed. portion forming a projection at one conical surface of the plate and achamber at the opposite surface thereof, and a filling block held Within saidchainher and provided with a shoulder adapted for engagement upon the projection of an adjacent plate at the side of such projection which vis adjacent to the perimeter of the a liner i. A liner for centrifugal separators coinprising a plurality ,of funneldike plates adapted to be fitted one within the other, each such plate having one of its conical surfaces provided with a projection adapted for engagement with an adjacent plate to hold the plates in spacedrclation,the opposite conical surface-of said plate having a depression produced in it opposite to said projection and an: opening produced in the platedv tlnn said depression and adapted for the t1 ow of fluid; 1

adapted, to be tted one Wit-hill; the other,

each such platc saving a projection extended outwardly beyond one of its conical surfaces and adapted for contact upon an adjacent plateto hold the plates in spaced relation,

and provided with a depression produced in ,it opposite to said projection, said depressien having one of its walls inclined from its lowcrito its upperpart to facilitate the and may be any, gaged in enlargementsfiQ of the depresf flow of the inilk from said depression and an opeiung extended-through sa d projection j liner for centrifugal-separatorscomgprlsing a plurality of funnel-like plates andadapted for the flow of fluid into said chamber. v I

6. A-liner for centrifugal separators comprising a plurality of funnel-like plates adapted to be fitted one Within the other, each such plate having an integral depressed portion forming a projection extended from one conical surface of the plate and adapted for contact upon an adjacent plate to hold the plates in spaced relation, the said depressed portion forming a chamber at the opposite conical surface of the plate, a tillingblock held Within said chamber and a passage extended through the projection and said'filling block and adapted for the flow .of fluid from one surface of the plate to the 7. Aliner for centrifugal separators co1nprising a plurality of funnel-like plates adapted to be fitted one Within the other, each such plate being provided upon its upper convex surface with upwardly extended shoulders adapted for engagement with projectionsupon an adjacent plate at the sides of such projections which are nearest adjacent to the perimeter of the liner.

8. A liner for centrifugal separators C0111- prising a plurality of funnel-like plates adapted to be fitted one Within the other,

the upper convex surface of each such plate being provided adjacent to its perimeter With upwardly directed shoulders, and the lower concave surface of each plate being provided With projections adapted for engagement against the inner surface of the shoulders of an adjacent plate to hold such plates in spaced relation.

9. A liner for centrifugal separators comprising a plurality of funnellike plates adapted to be fitted one Within the other, each such plate being provided With chan nels extended in spiral directions from its central portion toward its outer part, and filling members extended along the channels of the plate and forming spiral projections adapted for contact upon anadjacent plate to hold the plates in spaced relation.

10. A liner for centrifugal separators:

comprising a plurality of funnel like plates adapted tobe fitted one Within the other, each such plate having a plurality of channels extended spirally from its inner per-- tion toward its outer part and having an integral depressed portion at the outer end of each such channel, said depressed portion forming upon one surface of the plate a projection adapted for contact with. an ad jacent plate to hold such plate in spaced relation and forming a chamber at the opposite surface of the plate, and connnunieating With the adjacent spiral channel, and filling members inserted in said chambers and provided With parts traversing the chambers adjacent thereto and projecting from the conical surface of the plate and adapted for contact With an adjacent plate.

In Witness whereof,v I have hereunto signed my name in the presence of two subscribing wltnesses.

CARL Dinars: HELLsTRoM;

Witnesses CARL FRIBERG, Rosana APELGREN, 

